. British dragonflies (Odonata). Dragon-flies; Odonata -- Great Britain. euia "^. Fig. 24.—Typical Dragonfly Wings. A: a., Anterior Axillary Callus; 6., Posterior Axillary Callus; f., Cubital Point; d., Pterostigma ; f., Accessory Membrane (or Menibranule); /., Costa; f;., Sub-costa ; /i., Median Nervure; !., Sub-median Nervure ; _;'., Post-costa; Principal Sector; /., Nodal Sector; Sub-nodal Sector; n., Median Sector; 0., Short Sector; Upper Sector of the Triangle; Lower Sector of the Triangle; Anal Angle (r'. Anal Angle of Wing of Female); 5., Post-costal Space; ^, T
. British dragonflies (Odonata). Dragon-flies; Odonata -- Great Britain. euia "^. Fig. 24.—Typical Dragonfly Wings. A: a., Anterior Axillary Callus; 6., Posterior Axillary Callus; f., Cubital Point; d., Pterostigma ; f., Accessory Membrane (or Menibranule); /., Costa; f;., Sub-costa ; /i., Median Nervure; !., Sub-median Nervure ; _;'., Post-costa; Principal Sector; /., Nodal Sector; Sub-nodal Sector; n., Median Sector; 0., Short Sector; Upper Sector of the Triangle; Lower Sector of the Triangle; Anal Angle (r'. Anal Angle of Wing of Female); 5., Post-costal Space; ^, Triangle; «., Supra-triangular Space; Internal Triangle; k'., Basilar Space; a-., Median Space; Anal Triangle (when present); -., Post-trigonal Space ; arc, Arculus ; (, Ante-cubital Nervures ; , Post- Cubital Nervures; , Upper Sector of Arculus; Lower Sector of Arculus , End of Upper Sector of Arculus; , L'ltra-nodal Sector. B and C: References the same, except Q., the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lucas, William John. London, L. U. Gill
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherlondo, bookyear1900
